Self-Moving Floor Treatment Device

ABSTRACT

A self-moving floor treatment device (A) comprises a machine body base ( 100 ) and a water tank ( 200 ). A cleaning cloth ( 210 ) is attached onto the bottom of the water tank ( 200 ), and the water tank ( 200 ) is connected to the bottom surface of the machine body base ( 100 ) in a manner of floating up and down. By mounting the water tank ( 200 ) on the machine body base ( 100 ) in. a floating manner to leave a certain gap therebetween, the water tank ( 200 ) and the cleaning cloth ( 210 ) can float up and down within a certain range of space. Because the force that actually acts on the floor is just the gravity of the water tank ( 200 ) and the cleaning cloth ( 210 ) themselves and does not comprise the gravity of the machine, compared with a common product, the friction force between the cleaning cloth ( 210 ) and the floor is reduced, the phenomenon that the machine slips on the floor with water can be effectively avoided, the floor cleaning efficiency is improved and the obstacle crossing ability of the machine with the water tank ( 200 ) is improved.

FIELD OF THE INVENTION

The present invention relates to a self-moving floor treatment device,which belongs to the technical field of the manufacture of smallhousehold electric appliances.

BACKGROUND ART

Currently, the automatic floor-wiping structure of the intelligentvacuum cleaner on the market is configured by directly fixing a cleaningcloth at the bottom of the machine, or attaching the cleaning cloth on abottom surface of a water tank and then fixing the water tank at thebottom of the machine so as to clean the floor with water. However, whenthe water tank is used together with the cleaning cloth, since thecleaning cloth is completely wetted (the water inside the water tankgradually penetrates into the cleaning cloth), the friction coefficientbetween the cleaning cloth and the floor may increase, and the weight ofa part of the machine body is applied to the cleaning cloth, resultingin an excessive friction resistance between the machine and the floor,such that the machine may slip on a watery floor and thus cannot performeffective cleaning, thereby seriously affecting the work efficiency ofthe intelligent vacuum cleaner. Further, when the intelligent vacuumcleaner climbs up, one end of the water tank, which is away from thedrive wheel, may easily bear against the floor, making the robot unableto walk.

SUMMARY OF THE INVENTION

To overcome the deficiencies in the prior art, present invention aims toprovide a self-moving floor treatment device, in which a water tank ismounted on a machine body base in a floating manner so as to leave acertain gap therebetween, and the water tank and the cleaning cloth mayfloat up and down within a certain range of space, so that the frictionforce between the cleaning cloth and the floor is reduced; the machineis effectively prevented from slipping on the watery floor; the floorcleaning efficiency is improved; and the obstacle crossing ability ofthe machine with the water tank is improved.

The technical objective of the present invention is realized through thefollowing technical solutions:

A self-moving floor treatment device comprises a machine body base and awater tank, a bottom of the water tank is attached with a cleaningcloth, and the water tank is connected to a bottom surface of themachine body base in a manner of floating up and down.

Specifically, a floating gap between a top surface of the water tank andthe bottom surface of the machine body base has a size of 0.5-10 mm.

In working condition, the cleaning cloth is pressed against the floor bythe gravity of the water tank and the cleaning cloth themselves.

More specifically, the machine body base or the water tank is providedwith a guide pillar, and the water tank or the machine body base isprovided with a guide hole correspondingly, which is fitted around theguide pillar and moves up and down along the guide pillar. The contactsurfaces of the guide pillar and the guide hole are respectivelyprovided with a rib and a groove so as to facilitate positioning.

Further, an elastic member is provided between the machine body base andthe water tank, and the two ends of the elastic member are positioned onthe machine body base and the water tank, respectively. The elasticmember is a leaf spring or a spring.

In order to reduce the number of times of cleaning and replacing thecleaning cloth, the outside of the cleaning cloth is further coveredwith a disposable cleaning cloth; and the disposable cleaning clothcovers the peripheral surface of the water tank and the edges thereofare turned over to the inner side of the water tank so as to be fixed.

In conclusion, the present invention provides a self-moving floortreatment device, wherein, after attaching the cleaning cloth to thebottom surface of the water tank, the water tank is mounted on themachine body base in a floating manner so as to leave a certain gaptherebetween. The water tank and the cleaning cloth may float up anddown within a certain range of space. As to the cleaning cloth, theforce actually acted on the floor is the gravity of the water tank andthe cleaning cloth themselves and does not comprise the gravity of themachine. Therefore, compared with a common product, the friction forcebetween the cleaning cloth and the floor is reduced; the machine iseffectively prevented from slipping on the watery floor; the floorcleaning efficiency is improved; and the obstacle crossing ability ofthe machine with the water tank is improved.

The technical solutions of the present invention now will be describedin detail with reference to the accompanying drawings and specificembodiments.

DESCRIPTION OF ATTACHED DRAWINGS

FIG. 1 is a diagram of the overall structure of the self-moving floortreatment device according to the first embodiment of the presentinvention.

FIG. 2 is a sectional view of the self-moving floor treatment deviceaccording to the first embodiment of the present invention.

FIG. 3 is an exploded view of the self-moving floor treatment deviceaccording to the first embodiment of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS First Embodiment

FIG. 1 is a diagram of the overall structure of the self-moving floortreatment device according to the first embodiment of the presentinvention; FIG. 2 is a sectional view of the self-moving floor treatmentdevice according to the first embodiment of the present invention; andFIG. 3 is an exploded view of the self-moving floor treatment deviceaccording to the first embodiment of the present invention. As shown inFIGS. 1-3, the present invention provides a self-moving floor treatmentdevice A comprising a machine body base 100 and a water tank 200. Thebottom of the water tank 200 is attached with a cleaning cloth 210, andthe water tank 200 is connected to the bottom surface of the machinebody base 100 in a manner of floating up and down. In order to guaranteethat the water tank 200 is able to float to a certain extent relative tothe machine body base 100 and such floating does not obstruct theself-moving floor treatment device from walking, the size of thefloating gap should meet a certain requirement, which generally may be0.5-10 mm. Different physical structures may be used to enable the watertank 200 to float up and down relative to the machine body base 100. Forexample, the machine body base or the water tank is provided with aguide pillar, and the water tank or the machine body base is providedwith a guide hole correspondingly, which is fitted around the guidepillar and moves up and down along the guide pillar. As shown in FIG. 3,in the present embodiment, such physical structure is configured by aguide pillar 201 provided on the water tank 200 and a guide hole 111 (asshown in FIG. 1) correspondingly provided on the machine body base 100.For the purpose of effective positioning, the contact surfaces of theguide pillar and the guide hole may further be respectively providedwith a rib 202 and a groove (not shown) for positioning. Further, inorder to reduce the number of times of cleaning and replacing thecleaning cloth 210, the outside of the cleaning cloth 210 is alsocovered with a disposable cleaning cloth 220. Specifically, thestructure is configured by making the disposable cleaning cloth 220cover the peripheral surface of the water tank 200, and turning over theedges of the disposable cleaning cloth 220 to the inner side of thewater tank 200 so as to be fixed. In order to be able to achieveeffective positioning and easy replacement, the edges of the disposablecleaning cloth 220 can be used together with a rubber band or an elasticband, and such effect can also be achieved by a nylon velcro provided onthe edges the disposable cleaning cloth and back of the water tankcorrespondingly.

As shown in FIGS. 1-3, in the present embodiment, since the water tank200 is mounted on the machine body base 100 in a floating manner so asto leave a certain gap therebetween, during the operation of theself-moving floor treatment device A, the water tank 200 and thecleaning cloth 210 may float within a certain range of space under thegravity of the water tank 200 and the cleaning cloth 210 themselves.That is, they may float in a direction vertical to the floor. At thispoint, the cleaning cloth 200 is in contact with the floor, and theforce actually acted on the floor is just the gravity of the water tankand the cleaning cloth themselves and does not comprise the gravity ofthe machine body of the self-moving floor treatment device. Thus,compared with a common product, the friction force between the cleaningcloth and the floor is reduced; the machine is effectively preventedfrom slipping on the watery floor; and the floor cleaning efficiency isimproved. In addition, when the self-moving floor treatment deviceclimbs up, since the water tank may float relative to the machine bodybase, one end of the water tank is less likely to bear against themachine body base and to be stuck, which significantly enhances theclimbing ability of the self-moving floor treatment device.

Second Embodiment

The present embodiment differs from the first embodiment in that anelastic member is further provided between the water tank 200 and themachine body base 100. The two ends of the elastic member are positionedon the machine body base 100 and the water tank 200, respectively, andunder the elastic support by the elastic member, a floating gap is leftbetween the bottom surface of the machine body base and the outer topsurface of the water tank. The elastic member may be a leaf spring or aspring based on needs. Obviously, persons skilled in the art may alsoselect other proper structure according to the actual needs of aspecific structure. For example, the elastic member is fitted around theguide pillar so as to achieve the elastic connection between the machinebody base and the water tank.

Similar to the principal of the first embodiment, the elastic memberadopted in the present embodiment enables that, during the movement ofthe self-moving floor treatment device A, the force actually acted onthe floor is the gravity of the water tank and the cleaning cloththemselves, and the pressure between the cleaning cloth and the floormay be further slightly adjusted by the elastic force of the elasticmember. Therefore, with the use of the self-moving floor treatmentdevice, the friction force between the cleaning cloth and the floor maybe maintained in an optimal range, which effectively prevents theslipping phenomenon from occurring and improves the floor cleaningefficiency.

The other contents of the present embodiment are the same as those ofthe first embodiment, the description of which will be omitted here.

In conclusion, the present invention provides a self-moving floortreatment device, wherein, after attaching the cleaning cloth to thebottom surface of the water tank, the water tank is mounted on themachine body base in a floating manner so as to leave a certain gaptherebetween. The water tank and the cleaning cloth may float up anddown within a certain range of space. As to the cleaning cloth, theforce actually acted on the floor is just the gravity of the water tankand the cleaning cloth themselves and does not comprise the gravity ofthe machine. Compared with a common product, the friction force betweenthe cleaning cloth and the floor is reduced; the machine is effectivelyprevented from slipping on the watery floor; the floor cleaningefficiency is improved; and the obstacle crossing ability of the machinewith the water tank is improved.

What is claimed is:
 1. A self-moving floor treatment device comprising amachine body base (100) and a water tank (200), a bottom of the watertank being attached with a cleaning, cloth (210), wherein the water tank(200) is connected to a bottom surface of the machine body base (100) ina manner of floating up and down.
 2. A self-moving floor treatmentdevice of claim 1, wherein a floating gap between a top surface of thewater tank (200) and the bottom surface of the machine body base (100)has a size of 0.5-10 mm.
 3. A self-moving floor treatment device ofclaim 1, wherein, in working condition, the cleaning cloth (210) ispressed against the floor by the gravity of the water tank (200) and thecleaning cloth (210) themselves.
 4. A self-moving floor treatment deviceof claim 2, wherein, the machine body base (100) or the water tank (200)is provided with a guide pillar (201), and the water tank or the machinebody base is provided with a guide hole (111) correspondingly, which isfitted around the guide pillar and moves up and down along the guidepillar.
 5. A self-moving floor treatment device of claim 4, wherein, thecontact surfaces of the guide pillar (201) and the guide hole (111) arerespectively provided with a rib (202) and a groove for positioning. 6.A self-moving floor treatment device of claim 1, wherein, an elasticmember is provided between the machine body base (100) and the watertank (200), and the two ends of the elastic member are positioned on themachine body base and the water tank, respectively.
 7. A self-movingfloor treatment device of claim 6, wherein, the elastic member is a leafspring or a spring.
 8. A self-moving floor treatment device of claim 1,wherein, the outside of the cleaning cloth (210) is further covered witha disposable cleaning cloth (220); and the disposable cleaning cloth(220) covers the peripheral surface of the water tank (200) and theedges thereof are turned over to the inner side of the water tank so asto be fixed.
 9. A self-moving floor treatment device of claim 2,wherein, in working condition, the cleaning cloth (210) is pressedagainst the floor by the gravity of the water tank (200) and thecleaning cloth (210) themselves.
 10. A self-moving floor treatmentdevice of claim 2, wherein, an elastic member is provided between themachine body base (100) and the water tank (200), and the two ends ofthe elastic member are positioned on the machine body base and the watertank, respectively .
 11. A self-moving floor treatment device of claim2, wherein, the outside of the cleaning cloth (210) is further coveredwith a disposable cleaning cloth (220); and the disposable cleaningcloth (220) covers the peripheral surface of the water tank (200) andthe edges thereof are turned over to the inner side of the water tank soas to be fixed.